This sentence appears in the definition of ‘Flood Risk Assessment’: Where more than five years have passed since the FRA was carried out, evidence would be required to demonstrate that the basis of the FRA has not changed in that time.
The requirement for evidence that the basis of the FRA has not changed where more than five years have passed is applicable only at Design Stage. It is not required at Post Construction Stage where a compliant FRA was undertaken at Design Stage and the development was carried out in accordance with that design.